fix(mcp): ограничить очередь NetFlow и защитить чтение истории

backend/src/modules/mcp/diagnostic-cancellation-source.test.ts

@@ -1,6 +1,9 @@
 import assert from "node:assert/strict"
 import { createHash, randomUUID } from "node:crypto"
-import { createDiagnosticCancellationSourceForTests, createReadServerProbeExecutionSourceForTests } from "./diagnostic-cancellation-source.js"
+import { mkdtemp, readdir, rm, rmdir } from "node:fs/promises"
+import { tmpdir } from "node:os"
+import { join } from "node:path"
+import { createDiagnosticCancellationSourceForTests, createReadServerProbeExecutionSourceForTests, readServerProbeExecutionSource } from "./diagnostic-cancellation-source.js"
 import { fingerprint, redact } from "./security.js"
 
 const proof = async (value: unknown) => createHash("sha256").update(fingerprint(value)).digest("hex")
@@ -25,6 +28,7 @@ function fixture() {
     return { rows }
   } }
   return { load: () => load(client, operationId, owner), read: () => read(snapshot, operationId, owner), readSql,
+    readWithExistingKey: () => readServerProbeExecutionSource(snapshot, operationId, owner),
     refresh, binding, input, evidence, row, sealed, setRows: (value: typeof rows) => { rows=value }, calls: () => calls, operationId, credentialId }
 }
 {
@@ -100,4 +104,22 @@ for (const mutate of mutations) {
   assert.equal(source.originalContext.tool, "bandwidth"); assert.equal(source.stageBudget, 1)
   assert.equal(source.originalContext.identity.credentialId, f.credentialId)
 }
-console.log(`diagnostic-cancellation-source: locked/read-only source, expired original contexts and ${mutations.length} shared tamper checks passed`)
+{
+  const state = await mkdtemp(join(tmpdir(), "mm-legacy-source-test-"))
+  const previousState = process.env.MCP_STATE_DIR
+  process.env.MCP_STATE_DIR = state
+  try {
+    const f = fixture()
+    await f.refresh()
+    f.row.evidence = { sealed: Buffer.alloc(32).toString("base64") }
+    await assert.rejects(f.readWithExistingKey, { code: "STATE_CONFLICT" })
+    assert.equal(f.readSql.length, 1)
+    assert.deepEqual(await readdir(state), [], "Historical source reads must leave missing encryption state untouched")
+  } finally {
+    if (previousState === undefined) delete process.env.MCP_STATE_DIR
+    else process.env.MCP_STATE_DIR = previousState
+    await rm(join(state, "encryption-key"), { force: true })
+    await rmdir(state)
+  }
+}
+console.log(`diagnostic-cancellation-source: locked/read-only source, missing key, expired original contexts and ${mutations.length} shared tamper checks passed`)

backend/src/modules/mcp/diagnostic-cancellation-source.ts

@@ -3,7 +3,7 @@ import type { ProbeStorageScope, ProbeStorageSql } from "../../services/server-p
 import type { ServerProbeJournalContext } from "../../services/server-probe-journal.js"
 import { SERVER_PROBE_OPERATION } from "../../services/server-probe-authority.js"
 import { openServerProbeMcpBinding } from "./server-probe-actions.js"
-import { decryptSecret, fingerprint, privateSecretFingerprint, redact, McpError } from "./security.js"
+import { decryptSecret, decryptSecretExisting, fingerprint, privateFingerprinterExisting, privateSecretFingerprint, redact, McpError } from "./security.js"
 
 const MAX_BYTES = 2097152
 const uuid = z.string().uuid()
@@ -113,7 +113,10 @@ export const loadDiagnosticCancellationSource = sourceLoader(productionCrypto)
 /** Test-only crypto seam. Never accept these dependencies from tool JSON. */
 export const createDiagnosticCancellationSourceForTests = sourceLoader
 /** Historical authentication only; confers no execution/cancellation grant. */
-export const readServerProbeExecutionSource = readSourceLoader(productionCrypto)
+export const readServerProbeExecutionSource = readSourceLoader({
+  open: decryptSecretExisting,
+  proof: async value => (await privateFingerprinterExisting("server-probe-mcp-binding-v1"))(fingerprint(value)),
+})
 export const createReadServerProbeExecutionSourceForTests = readSourceLoader
 /** Exact previously locked source projection for private history conversion. */
 export function authenticateServerProbeExecutionSourceRow(row: Record<string, unknown>, operationId: string,

backend/src/services/server-probe-legacy-verifier.test.ts

@@ -1,5 +1,8 @@
 import assert from "node:assert/strict"
 import { createHash, randomUUID } from "node:crypto"
+import { mkdtemp, readdir, rm, rmdir } from "node:fs/promises"
+import { tmpdir } from "node:os"
+import { join } from "node:path"
 import type { ServerProbeExecutionSource } from "../modules/mcp/diagnostic-cancellation-source.js"
 import { fingerprint } from "../modules/mcp/security.js"
 import type { ServerProbeJournalContext } from "./server-probe-journal.js"
@@ -207,4 +210,25 @@ for (const field of ["operation_id", "connection_id", "actor_id"]) {
   const f = await fixture(), verify = createLegacyServerProbeVerifierForTests(f.deps, { ...f.crypto, proof: async () => { throw Error(secret) } })
   const result = await verify(f.bundle); assert.equal(result.status, "unresolved"); assert.equal(JSON.stringify(result).includes(secret), false); checks++
 }
-console.log(`server-probe-legacy-verifier: ${checks} inert historical authentication checks passed; migration readiness always false`)
+{
+  const state = await mkdtemp(join(tmpdir(), "mm-legacy-verifier-test-"))
+  const previousState = process.env.MCP_STATE_DIR
+  process.env.MCP_STATE_DIR = state
+  try {
+    const receipt = await fixture()
+    const quarantine = await fixture("rest", false)
+    await quarantine.quarantine()
+    const verify = createLegacyServerProbeVerifier(receipt.deps)
+    for (const bundle of [receipt.bundle, quarantine.bundle]) {
+      assert.equal((await verify(bundle)).status, "unresolved")
+      assert.deepEqual(await readdir(state), [], "Historical reads must leave missing encryption state untouched")
+      checks++
+    }
+  } finally {
+    if (previousState === undefined) delete process.env.MCP_STATE_DIR
+    else process.env.MCP_STATE_DIR = previousState
+    await rm(join(state, "encryption-key"), { force: true })
+    await rmdir(state)
+  }
+}
+console.log(`server-probe-legacy-verifier: ${checks} historical authentication checks passed; migration readiness always false`)

backend/src/services/server-probe-legacy-verifier.ts

@@ -3,7 +3,7 @@
 import { isDeepStrictEqual } from "node:util"
 import { z } from "zod"
 import type { ServerProbeExecutionSource } from "../modules/mcp/diagnostic-cancellation-source.js"
-import { decryptSecret, fingerprint, privateSecretFingerprint } from "../modules/mcp/security.js"
+import { decryptSecretExisting, fingerprint, privateFingerprinterExisting } from "../modules/mcp/security.js"
 import { parseServerProbeJournalContext, validateServerProbeJournalReceipt, type ServerProbeJournalContext } from "./server-probe-journal.js"
 import type { ServerProbeReceipt } from "./server-probe-execution.js"
 import type { ProbeStorageScope } from "./server-probe-journal-maintenance.js"
@@ -89,8 +89,9 @@ function stages(rows: Record<string, unknown>[], ctx: ServerProbeJournalContext,
   }
   return received
 }
-const productionCrypto: LegacyServerProbeVerifierCrypto = { open: decryptSecret,
-  proof: (domain, value) => privateSecretFingerprint(fingerprint(value), "server-probe-journal-v1:" + domain) }
+// Inspection must never recreate missing application key state.
+const productionCrypto: LegacyServerProbeVerifierCrypto = { open: decryptSecretExisting,
+  proof: async (domain, value) => (await privateFingerprinterExisting("server-probe-journal-v1:" + domain))(fingerprint(value)) }
 
 function verifier(dependencies: LegacyServerProbeVerifierDependencies, crypto: LegacyServerProbeVerifierCrypto) {
   return async (raw: LegacyServerProbeBundle): Promise<LegacyServerProbeVerification> => {

backend/src/services/traffic-flow-engine-owned.test.ts

@@ -5,6 +5,7 @@ import * as crypto from "node:crypto"
 import { isDeepStrictEqual } from "node:util"
 import { createFlowIngestQuality, type FlowIngestQuality } from "./traffic-flow-ingest-quality.js"
 import ts from "typescript"
+import { DatabaseBackgroundWork } from "./database-background-work.js"
 import * as owned from "./traffic-flow-owned-batch.js"
 import * as proof from "./traffic-flow-batch-proof.js"
 import * as accumulator from "./traffic-flow-fact-accumulator.js"
@@ -264,3 +265,60 @@ await explicitPrune.flushPending({force:true,prune:true})
 assert.equal(commits,pruneAttempts+1)
 assert.ok(dispatches>pruneDispatches,"explicit retention/prune still dispatches on a fresh engine")
 console.log("maintenance no-op: pristine/reset skip only; error-only unknown batch remains owned without replay; explicit prune preserved")
+
+
+// A paused cold cache must not enqueue one pair of SQL loaders per datagram.
+const coldWork = new DatabaseBackgroundWork()
+let coldClock = 0
+let topologyLoads = 0
+let catalogLoads = 0
+let catalogReady = false
+let topologyReady = false
+let rejectTopology!: (error: Error) => void
+let releaseCatalog!: () => void
+const firstTopology = new Promise<void>((_resolve, reject) => { rejectTopology = reject })
+const firstCatalog = new Promise<void>(resolve => { releaseCatalog = resolve })
+const coldDependencies = {
+  ...dependencies,
+  "./database-background-work.js": { databaseBackgroundWork: coldWork },
+  "./traffic-flow-topology.js": {
+    peekFlowTopology: () => topologyReady ? {} : null,
+    peekServerCatalog: () => catalogReady ? { byId: new Map() } : null,
+    loadFlowTopology: async () => {
+      topologyLoads++
+      if (topologyLoads === 1) await firstTopology
+      topologyReady = true
+    },
+    getServerCatalog: async () => {
+      catalogLoads++
+      await firstCatalog
+      catalogReady = true
+    },
+  },
+}
+const coldExports: Record<string, unknown> = {}
+runInNewContext(output, {
+  exports: coldExports,
+  require: (name: keyof typeof coldDependencies) => coldDependencies[name],
+  performance: { now: () => coldClock },
+  Buffer, console, setTimeout, clearTimeout,
+})
+const coldEngine = coldExports as unknown as Engine
+for (let i = 0; i < 128; i++) coldEngine.queueParsedFlows(1, [])
+assert.deepEqual([topologyLoads, catalogLoads], [1, 1])
+let drained = false
+const drain = coldWork.drain().then(() => { drained = true })
+await Promise.resolve()
+assert.equal(drained, false)
+rejectTopology(new Error("Owned topology load refused"))
+releaseCatalog()
+await drain
+assert.equal(drained, true)
+coldClock = 999
+for (let i = 0; i < 128; i++) coldEngine.queueParsedFlows(1, [])
+assert.deepEqual([topologyLoads, catalogLoads], [1, 1])
+coldClock = 1000
+coldEngine.queueParsedFlows(1, [])
+await coldWork.drain()
+assert.deepEqual([topologyLoads, catalogLoads], [2, 1])
+assert.equal(topologyReady, true)

backend/src/services/traffic-flow-engine.ts

@@ -404,12 +404,28 @@ export function getEngineStats(): EngineStats {
   }
 }
 
+function coldSourceRefresh(load: () => Promise<unknown>): () => void {
+  let loading = false
+  let retryAfter = 0
+  return () => {
+    if (loading || performance.now() < retryAfter) return
+    loading = true
+    void databaseBackgroundWork.track(load()).then(
+      () => { loading = false },
+      () => { retryAfter = performance.now() + 1000; loading = false },
+    )
+  }
+}
+
+const refreshColdTopology = coldSourceRefresh(loadFlowTopology)
+const refreshColdCatalog = coldSourceRefresh(getServerCatalog)
+
 export function queueParsedFlows(serverId: number, flows: ParsedFlowInput[]): void {
   if (flows.length) bumpDataEpoch()
   const at=Date.now(),bucketAt=minuteBucketIso(at),hourAt=hourBucketIso(at),observedAt=new Date(at).toISOString(),ripeMisses:string[]=[]
   const topo = peekFlowTopology(), catalog = peekServerCatalog()
-  if (!topo) void databaseBackgroundWork.track(loadFlowTopology()).catch(() => {})
-  if (!catalog) void databaseBackgroundWork.track(getServerCatalog()).catch(() => {})
+  if (!topo) refreshColdTopology()
+  if (!catalog) refreshColdCatalog()
   const serverType = catalog?.byId.get(serverId)?.type
   for (const raw of flows) {
     const flow = normalizeParsedFlow(raw)